First, let's get the latest on the stunning setback on the search for the missing Malaysia jet. David Kerley has been tracking this mystery from the start. Good morning, David. Reporter: Good morning, George. This is a major setback and a big embarrassment. The first big embarrassment for the Australias in the search for this missing 777. They've wrapped up the underwater search. And they say do not believe, that the vehicle, the 777, is actually in that area. This means the black box pings the Australians thought they heard, apparently are not real. On Wednesday, or this morning, the Australian transport safety board said, quote, in its judgment, the area can be discounted as the final resting place for mh-370. It is an embarrassment for the royal Australian Navy because its acoustical lab confirmed those springs as from the black boxes. And sonar scanners probably will not be back in the water until August, looking for wreckage. Why the delay? Reporter: They don't have the equipment in place yet. Right now, a Chinese ship is doing a general topographical map of the ocean bottom. Then, they want to bring in a contractor to look for wreckage. But they have to make a deal with the private contractor to do that. So far this morning, they haven't made a deal. And once they do start to do the work, George, it could take a year to look over this area for that wreckage.

This transcript has been automatically generated and may not be 100% accurate.

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